import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'


Vue.use(VueRouter)

const routes = []

const router = new VueRouter({
    routes: [
        { path: '/', redirect: '/login' },
        { path: '/login', component: Login },
        { path: '/home', component: Home },

    ]
})

// 挂载路由导航守卫
router.beforeEach((to, from, next) => {
    // to 将要访问的路径，from 从哪个路径过来，next 放行函数 next(/login)强制跳转
    if (to.path == '/login') return next();
    // 获取token
    const tokenStr = window.sessionStorage.getItem('token')
    if (!tokenStr) {
        // 没有token 强制登录
        return next('/login')
    } else {
        // 如果有token 则进行放行
        next()
    }



})

export default router